document.write( "Question 1136550: According to a Gallop poll, 27% of American adults have confidence in banks. Suppose that you
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document.write( "interview 5 American adults at random.
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document.write( "(a) What is the probability that 2 or fewer have confidence in banks?
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document.write( "(b) What is the probability that no one had confidence in banks?
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document.write( "(c) What is the probability that 3 or more have confidence in banks? \n" );
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Algebra.Com's Answer #754422 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! for 0: \n" ); document.write( "this is 0.73^5=0.2073. ANSWER b \n" ); document.write( "for 1: it is 5*0.27*0.73^4=0.3834 \n" ); document.write( "for 2: it is 10*0.27^2*0.73^3=0.2836\r \n" ); document.write( "\n" ); document.write( "for 2 and fewer, it is 0.8743 ANSWER a\r \n" ); document.write( "\n" ); document.write( "for 3 or more, it is the complement or 0.1257 ANSWER c\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |